Abstract

Since 1994, the incidence of gonorrhoea in Østfold county, Norway, has remained within the range of 1-8 cases per year, with 40% of cases being imported from abroad. On 20 January 2008, a general practitioner in the county diagnosed two seemingly unrelated domestic cases of gonorrhoea in three days and started contact tracing. A case was defined as a person with clinical symptoms of gonorrhoea who was a part of the sexual network. Available isolates from the samples taken were tested for resistance. Among 13 contacts identified in the sexual network, eight were classified as cases on the basis of symptoms, four of whom had laboratory-confirmed gonorrhoea. The index case acquired the infection abroad. The three isolated strains were resistant to ciprofloxacin, but sensitive to ceftriaxone which was used for treatment. In the outbreak described, most cases were diagnosed only after contact tracing although they had had symptoms. A quinolone-resistant strain was imported from abroad and introduced into the population. The Norwegian national treatment guidelines, which still recommend quinolones for empirical treatment, should be updated.
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